Liknande böcker
Availability Study of Mineral Resources in Ningxia
Bok av Cheng Jianhua
The author was one of members who conducted geological survey fund program - Availability Study of Mineral Resources in Ningxia Hui Autonomous Region and this book was completed based on work of this period. In this book, the author presents us his thinking and understanding about the safeguarding issues of some important mineral resources as well as his protection suggestions.